CN108290447B - The crown reinforcement of tire for heavy goods vehicle used in municipal works - Google Patents
The crown reinforcement of tire for heavy goods vehicle used in municipal works Download PDFInfo
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- CN108290447B CN108290447B CN201680069758.8A CN201680069758A CN108290447B CN 108290447 B CN108290447 B CN 108290447B CN 201680069758 A CN201680069758 A CN 201680069758A CN 108290447 B CN108290447 B CN 108290447B
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- reinforcement
- working lining
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- tire
- hoop
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 55
- 239000011241 protective layer Substances 0.000 claims abstract description 39
- 230000002708 enhancing effect Effects 0.000 claims description 5
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- 230000009471 action Effects 0.000 description 1
- ORILYTVJVMAKLC-UHFFFAOYSA-N adamantane Chemical compound C1C(C2)CC3CC1CC2C3 ORILYTVJVMAKLC-UHFFFAOYSA-N 0.000 description 1
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
- B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
- B60C9/2003—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel characterised by the materials of the belt cords
- B60C9/2006—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel characterised by the materials of the belt cords consisting of steel cord plies only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
- B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
- B60C9/2003—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel characterised by the materials of the belt cords
- B60C9/2009—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel characterised by the materials of the belt cords comprising plies of different materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
- B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
- B60C9/22—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
- B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
- B60C2009/2012—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel with particular configuration of the belt cords in the respective belt layers
- B60C2009/2016—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel with particular configuration of the belt cords in the respective belt layers comprising cords at an angle of 10 to 30 degrees to the circumferential direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
- B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
- B60C2009/2048—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel characterised by special physical properties of the belt plies
- B60C2009/2051—Modulus of the ply
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
- B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
- B60C2009/2074—Physical properties or dimension of the belt cord
- B60C2009/2077—Diameters of the cords; Linear density thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
- B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
- B60C2009/2074—Physical properties or dimension of the belt cord
- B60C2009/209—Tensile strength
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C2200/00—Tyres specially adapted for particular applications
- B60C2200/06—Tyres specially adapted for particular applications for heavy duty vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C2200/00—Tyres specially adapted for particular applications
- B60C2200/06—Tyres specially adapted for particular applications for heavy duty vehicles
- B60C2200/065—Tyres specially adapted for particular applications for heavy duty vehicles for construction vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
The present invention relates to the tires for the heavy goods vehicle in municipal works comprising work reinforcement (50), protection reinforcement (60) and hoop reinforcement (70).Reinforcement (50) are worked including two layers (51,52), it include for this two layers the non-resilient metal reinforcement of the angle being formed in circumferential direction between 30 ° and 35 ° intersected, the non-resilient metal reinforcement has the breaking strength greater than 2500daN.Hoop reinforcement (70) is formed by two layers (71,72) of circumferentially wound formation and is arranged between working lining (51,52) radially, it includes elastic circumferential metal reinforcement, and the circumferential metal reinforcement of elasticity has the breaking strength greater than 800daN.The metal reinforcement of protective layer (61,62) can be identical with the reinforcement of hoop reinforcement, has angle identical with working lining and intersects between layer and layer.The reinforcement is elastic, and has the diameter greater than 3mm and the breaking strength greater than 800daN.
Description
Technical field
The present invention relates to the tires for construction site type heavy vehicle, relate more specifically to the crown of the tire.
Background technique
Although not limited to such application, but the present invention comes referring more specifically to large-sized radial
It is described, the radial is intended to for example install to dumper, and dumper is for transporting from stone pit or from outdoor
The vehicle of the material of mining site exploitation.In the meaning of European tyre and Rim Technical Organisation (ETRTO) standard, the wheel of this tire
The nominal diameter of rim is at least equal to 25 inches.
It is including usually tire rotary shaft since the geometry of tire shows the rotational symmetry around rotation axis
The geometry of tire is described in the meridional plane of line.For given meridional plane, table radially, axially is distinguished with circumferential direction
Show perpendicular to tire rotation axis, be parallel to tire rotation axis and perpendicular to the direction of meridional plane.Perpendicular to the rotation of tire
Shaft axis is simultaneously referred to as equatorial plane across the plane of its center of gravity.
Hereinafter, statement " being radially positioned inside " and " being radially positioned outside " respectively indicates " in radial side
Upwardly close to the rotation axis of tire " and " in radial directions further from the rotation axis of tire ".Statement " is presented axially in
It is internal " and " being presented axially in outside " respectively indicate " in the axial direction closer to equatorial plane " and " in the axial direction
Further from equatorial plane "." radial distance " is the distance of the rotation axis relative to tire, and " axial distance " is relative to tire
Equatorial plane distance." radial thickness " measures in radial directions, and " axial width " measures in the axial direction, " circumferential
Length " is the length of the circular arc in circumferential direction.
Tire includes crown, two tyre beads and two sidewalls, and the crown includes being intended to connect by tread surface and ground
The tyre surface of touching, the tyre bead are intended to contact with wheel rim, the sidewall connection crown and tyre bead.Commonly used in construction site type vehicle
Radial more particularly include that such as radial carcass reinforcement described in document WO2014-095957 and crown increase
Strong part.
The carcass reinforcement of radial for construction site type heavy vehicle generally includes at least one body piles,
The body piles generally include the metal reinforcement for being covered with elastomeric material, and the elastomeric material, which is referred to as, covers compounding
Object.Body piles include major part, and two tyre beads are combined together and in each tyre bead from tire by the major part
Inside to external around being usually the circumferential reinforcing element winding of metal to form crimping, described is usually the circumferential direction of metal
Reinforcing element is referred to as bead.The metal reinforcement of body piles is substantially parallel to each other and is formed in 85 ° with circumferential direction
And the angle between 95 °.
The crown reinforcement of radial for construction site type heavy vehicle includes the crown being arranged in the circumferential
The superposition of layer, the crown layer are radially positioned the outside of carcass reinforcement.Each crown layer generally include to be parallel to each other and
It is covered with elastomeric material or covers the metal reinforcement of blend.
Crown reinforcement includes the outside for being radially positioned carcass reinforcement and the inside for being radially positioned tyre surface
At least one work reinforcement, the work reinforcement include at least two working linings.These working linings pass through reinforcement or curtain
Line is superimposed and is formed, and the reinforcement or cord intersect in parallel and between the layers in each layer, thus and circumferential direction
Form the angle between 10 ° and 45 °.Their own axial width at least equal to tire maximum axial width three/
Two.It (is inflated to be equal to and for example be recommended by the Tire and Rim Association, Inc. or TRA when tire is mounted on its wheel rim and slightly inflates
Nominal pressure 10% pressure) when, at sidewall measure tire maximum axial width.Including at least two working linings
The function of work reinforcement is latch closure tire and assigns rigidity and road holding on tire.The reinforcement that works absorbs inflation
The mechanical stress of the mechanical stress that mechanical stress and operating generate, the inflation is generated by inflation pressure of tire and passes through carcass
Reinforcement transmitting, the mechanical stress that the operating generates when tire operating on the ground by generating and by tyre surface transmitting.
It should also resist oxidation, impact and puncture.
The working lining for forming work reinforcement can be radially positioned the inside of protection reinforcement, and the protection increases
Strong part includes at least one layer of referred to as protective layer, and by being usually metal and extendible or elastic reinforcement is formed.?
It is intended to travel the protection in the case where construction site type heavy vehicle on uneven ground, including at least one protective layer to increase
The presence of strong part is advantageous.Reinforcement is protected to protect working lining from may be by tyre surface radially toward wheel in itself
The mechanical attack or physical chemistry attack of tire internal communication.In the case where multiple protective layers, advantageously exist for reinforcement
Intersect between layers, and advantageously adjacent with the radially inner most protective layer for the reinforcement of radially inner most protective layer
Radially the inextensible reinforcement of working lining is intersected.
Crown reinforcement can also include one layer of non-resilient gold of the angle being formed between 45 ° and 90 ° with circumferential direction
Belong to reinforcement.The layer is referred to as triangular lamella, is radially positioned the outside of carcass reinforcement and is radially positioned radial direction most
The inside of interior working lining, and the reinforcement including being parallel to each other, the reinforcement and circumferential direction formed absolute value at least equal to
45 ° of angle.Triangular lamella forms the reinforcement of triangle at least described working lining, and has influx and translocation body in the tire of tire
It is preced with the key effect of lateral compressive force experienced in region.The crown of this type including triangular lamella, working lining and protective layer
Structure means to be subjected to the flexible tire significantly deformed at equatorial plane and tire shoulder (also that is, axial end portion of tyre surface) in inflation
Hat.The flexible of plane allows crown in vehicle driving with for example about tire conjugates size under its nominal load under the line
Barrier on when be deformed without failure.Displacement is interpreted as becoming under its nominal load from unsupported inflated condition when tire
The radius change of the midpoint of tread surface in plane under the line when changing to load inflated condition.
On the contrary, in the process of moving, this flexibility at tire shoulder causes in crown by the above-mentioned crown structure
The high deformation of existing elastomeric material causes the high temperature of the elastomeric material.At the reached temperature, the bullet of crown
Elastomer material has lost its partial fracture patience, so that crown durability becomes smaller.This crack of elastomeric material is in extreme feelings
The separation of working lining is caused under condition, this is referred to as the cracking of crown.
The third parameter of crown performance is related to the tensile break strength of protective layer and shear strength, this may with it is rigid
Occur in the impact process of property object.
In order to solve the problems, such as crown durability, from the tire of type heavy vehicle in construction site known to document FR 2419182
It may include being radially positioned the outside of carcass reinforcement and being radially positioned the inside of work reinforcement and put down with equator
The narrow enhancement layer of one or more centered on face.These layers are referred to as narrow hoop layer, and have limitation tire radial in inflation
The function of deformation.This limitation so that crown is flattened under the influence of load during deformation reduction, and thus reduce temperature,
And the improvement for the relevant durability performance that allows to crack to crown.Narrow hoop layer is interpreted as diameter of the axial width less than 0.6 times
To the layer of the axial width of most interior working lining.These narrow hoop layers generally include the inextensible reinforcement of metal, the enhancing
Body and circumferential direction, which are formed, is greater than 6 ° and the angle less than 12 °.Each reinforcement of these narrow hoop layers is handed between the layers
Fork is so that it is guaranteed that rigidity bigger at crown and better durability relevant to the cracking of crown.
However, there are three defects for this scheme tool.First defect is related to manufacture and the large scale construction field of narrow hoop layer
The laying of the narrow hoop layer of the tire of ground type heavy vehicle.Specifically, 3m is greater than for diameter and width is greater than the tire of 0.8m,
Manufacture reinforcement and circumferential direction formed about 8 ° angle narrow hoop layer mean along be greater than 2.5m (i.e. in commercial industrial machine
Other than range) Cutting Length cut narrow hoop layer, and narrow hoop layer is welded to tire along this same length before curing,
This needs know-how and the accuracy close to twice laying working lining or protective layer.
Second defect is tire to shock-sensitive, and the impact is related with the barrier being present on road, has
About tire height that size is conjugated under its nominal load.Specifically, in the case where impact, these neutrality far from crown
The adamantine narrow hoop layer of axis is subjected to significant forced deformation, causes crown reinforcement to damage or be broken, leads to tire
Failure.The hoop layer of this type cannot be moved closer to neutral axis due to demand, it cannot be at least for tire
It is deformed in its extrusion process.This actually allows to generate the tread contour of tire tread and squeezing tire in a mold
Element.Cannot equally risk lose from hardening the resulting crown of crown crack relevant durability the advantages of risk and it is further
Open angle and keep crown more flexible.
Third defect is related with the too low breaking strength of protective layer.In order not to reduce property of the crown in terms of cracking
Can, not can increase the reinforcement of protective layer diameter and its thus obtained intensity.This is because stronger reinforcement has more
Big diameter simultaneously occupies bigger volume, thereby results in running temperature and increases and make cracking aspect reduced performance.
In order to solve the problems, such as include narrow hoop layer crown shock sensive this, document WO 2014048897 and WO
2014095957 propositions or elastic narrow hoop layer or non-resilient narrow hoop layer are applied in combination with the first working lining, and described first
The angle of the reinforcement of working lining is at least equal to 50 °.However, making although they improve the impact resistance of crown given
In the case where the size of certain barriers and the feature of protective layer that are encountered with the building site of tire, these schemes are anyway not really
Protect its mechanical integrity.
Summary of the invention
The purpose of the present invention is both improvement and the cracking of the tyre crown of construction site type heavy vehicle and impact resistance
Related durability performance.
According to the present invention, the purpose is realized by the tire for construction site type heavy vehicle, the tire includes:
Tyre surface, be intended to ground face contact,
Radial carcass reinforcement, is radially positioned the inside of tyre surface and including at least one body piles,
Crown reinforcement is radially positioned the inside of the tyre surface and is radially positioned radial carcass enhancing
The outside of part, including work reinforcement, hoop reinforcement and protection reinforcement,
The work reinforcement comprising at least two working linings, each working lining include non-resilient metal reinforcement,
The non-resilient metal reinforcement intersects between working lining and working lining and is formed at least equal to 30 ° and at most with circumferential direction
Angle equal to 35 °,
The hoop reinforcement, is formed by circumferentially wound casing ply, and the casing ply includes being formed with circumferential direction
At most it is equal to 2.5 ° of circumferential elastic metallic reinforcement, the circumferentially wound casing ply is extended to from the first circumferential end in diameter
The second circumferential end outside the first circumferential end upwards, so that at least two radially stacked hoop layers are formed,
The protection reinforcement comprising at least two protective layers, each protective layer is made of metal reinforcement, described
Metal reinforcement intersects between protective layer and protective layer and is formed at least equal to 20 ° and at most with circumferential direction equal to 40 °
Angle,
The metal reinforcement of protective layer is elastic, and has the diameter at least equal to 3mm, and at least equal to
The disruptive force of 800daN,
The metal reinforcement of working lining has the disruptive force at least equal to 2500daN,
Hoop reinforcement is arranged between working lining radially,
The circumferential metal reinforcement of hoop reinforcement has the disruptive force at least equal to 800daN.
Specifically, this structure is by means of using the circumferential reinforcement close to the neutral axis setting of crown can be by tire
The deformation limitation of crown at shoulder to include narrow hoop layer structure according to prior art in the case where at resulting tire shoulder
Crown the similar level of deformation.Therefore, this allows to pass through by means of having at center flexible and in vehicle driving
The crown of deformation caused by capable of being tolerated when barrier because of impact, thus relevant to the cracking of crown durable desired by obtaining
Property performance and it is expected that both impact resistances.
Specifically, when by barrier, the crown of tire serves as beam, and neutral axis depends on the type of forced deformation
And between working lining.The neutral axis of curved crown reinforcement is between most hard crown layer, i.e., non-resilient work
Make between layer.By being arranged circumferential reinforcement between the working lining, the technical program is minimized answers with circumferential reinforcement
This of tolerance loads relevant stress and bending deformation.
Also allow to increase the angle of working lining using hoop reinforcement and thus reduce temperature, and/or to protective layer
Use the reinforcement with larger diameter and thus obtained more major rupture intensity.
According to the present invention, hoop reinforcement is formed by circumferentially wound casing ply.Circumferentially wound casing ply is with respect to the circumferential direction
It is advantageous for wound reinforcement members or the circumferentially wound band being made of multiple reinforcements (such as 10 reinforcements), this type
The winding of type is commonly used in passenger stock or the tire of heavy goods vehicle.This routine winding scenario is because of construction site type heavy vehicle
Tire size and have high cost.Specifically, the perimeter of tire and laying width and quality are being laid with these weeks
To need during reinforcement the rotation speed of extremely low tire to avoid green tyre (tire i.e. before curing) from existing
Any deformation under centrifugal force effect.Therefore this scheme causes the great operating time.In addition, this scheme can be hardened exceedingly
Crown not can solve endurance issues relevant to impact.
For metal reinforcement, the mechanical features of metal reinforcement is the drawing force for indicating to be applied to metal reinforcement
(being indicated with N) with the curve of the variation of the specific elongation (being indicated with %) of metal reinforcement, it is bent that the curve is referred to as power-elongation
Line.Mechanical stretching feature such as structural stretch As (being indicated with %), total extension at break At are obtained by the power-extension curve
(being indicated with %), disruptive force Fm (maximum load indicated with N) and breaking strength Rm (being indicated with MPa), according to mark in 1984
Quasi- ISO 6892 measures these features.
According to definition, total extension at break A of metal reinforcementtFor the summation of structural stretch, elastic elongation and plastic elongation
(At=As+Ae+Ap).Structural stretch AsIt is produced by forming relative positioning of the tinsel of metal reinforcement under low tension load
It is raw.Elastic elongation AeActual elastic by forming the metal of the tinsel (independent consider) of metal reinforcement generates that (Hooke is fixed
Rule).Plastic elongation ApThe plasticity of metal from these tinsels individually considered is (more than the irreversible change of yield point
Shape).These different elongations and its it is respective be meant that well known to a person skilled in the art, and describe in document
In US5843583, WO2005014925 and WO2007090603.
Stretch modulus (being indicated with GPa) is limited equally at the arbitrary point in power-extension curve and is indicated at this point
With the gradient of power-extension curve tangent straight line.Particularly, the stretch modulus quilt of the elastic linear segment in power-extension curve
Referred to as elastic tensile modulus or Young's modulus.
It in metal reinforcement, is usually distinguished between elastic metallic reinforcement and non-resilient metal reinforcement, institute
Stating elastic metallic reinforcement is, for example, those of to be used in protective layer, and the non-resilient metal reinforcement is, for example, to be used in working lining
Those of in.
Elastic metallic reinforcement is characterized in that the structural stretch A at least equal to 1%sWith total fracture at least equal to 4%
Extend At.In addition, elastic metallic reinforcement has the elastic tensile modulus usually between 40GPa and 150GPa.
Elastic or non-resilient metal reinforcement is characterized in that being equal to disruptive force Fm10% drawing force under at most
Specific elongation equal to 0.2%.In addition, there is non-resilient metal reinforcement the elasticity usually between 150GPa and 200GPa to draw
Stretch modulus.
The elastic metallic reinforcement of protective layer allows to tolerate local forced deformation when crossing barrier.According to this hair
Bright, they have the diameter at least equal to 3mm, and the disruptive force at least equal to 800daN.The radius of high level allows to inhale
The deformation being received in the shearing of the protective layer on bigger thickness, this generates lower shear stress.The disruptive force of high level allows to increase
Strong body tolerates higher fracture strength, thus improves performance of the crown in terms of Impacting endurance.
The metal reinforcement of working lining has the disruptive force at least equal to 2500daN, this ensures to be broken the safety system of aspect
Several and satisfactory fatigue strength.Preferably, rubber compounding object permeates the reinforcement of entire crown reinforcement, especially protects
Layer.This can be carried out in any time in tire production process, such as during producing reinforcement, will be increased before curing
During strong body is laid on tire, or during molded tire.This property is by preventing corrosive element from increasing
Qiang Tizhong's propagates the corrosion resistance for carrying out the reinforcement of improvement layer and entire crown, and the component phase by avoiding reinforcement
Mutual friction improves the fatigue strength of reinforcement.
The circumferential reinforcement of hoop reinforcement is the angle being formed in the range of [- 2.5 ° ,+2.5 °] with circumferential direction
Reinforcement.They are elastic, the expansions for the laying diameter for thus allowing to be generated by cure tyre in mold.Specifically, tire
The different elements acquisition of tire is usually formed under initial specific diameter by being laid on.Then, tire is arranged in curing mold
At the diameter with the maximum gauge greater than tire before curing, wherein elastomeric material is vulcanized by fuel factor.For this purpose, tire
The whole elements for pressurizeing in a mold, and forming tire show the diameter greater than their initial specific diameters.For whole
Working lining, body piles, protective layer, their reinforcement be not it is circumferential, this diameter change is because of the covering in different reinforcements
The deformation of blend and occur.For the layer of the circumferential reinforcement of hoop reinforcement, this circumferentially extending is by having at least
Equal to due to molding generate extension structural stretch elasticity reinforcement and obtain.
In addition, the circumferential reinforcement of hoop reinforcement has the disruptive force at least equal to 800daN so as to bear by taking turns
Tire crosses drawing force brought by the barrier encountered in use.
Preferable scheme is that the circumferential metal reinforcement of hoop reinforcement and the circumferential metal reinforcement of protective layer are identical
Type.The type of reinforcement is understood to mean that their component, manufacturing method, geometry is identical.Specifically, the group of tire
The standardization divided is to reduce the means of manufacturing cost.
Advantageously, the circumferential metal reinforcement of the circumferential metal reinforcement of hoop reinforcement or protective layer have at least equal to
70GPa and elasticity modulus at most equal to 130GPa under 10% elongation, to be tolerated in municipal works on the way crossing
Forced deformation when barrier.
Preferably, the metal reinforcement of protective layer and circumferential direction form such angle, have and are substantially equal to work
The absolute value of the metal reinforcement of layer and circumferential rectangular angle." substantially equal to " mean to be equal in manufacture deviation, also that is, angle
The absolute value of the difference of degree is less than 2 °.These angles measure at equatorial plane on tire, the tire had been removed tyre surface and
It is radially positioned the outside of the tyre surface and is intended to the casing ply of measurement angle.In this case, selected angle is for control
It is optimal for making for the temperature of the crown at the axial outer end portion of working lining and protective layer, and is thus being cracked for crown
It is optimal for the performance of aspect, while there is the crown rigidity for the impact resistance for allowing good crown.
The circumferential end of the casing ply of composition hoop reinforcement is advantageously formed with axial direction at least equal to 25 °
Angle (A).Around this angle allows to avoid the circumferential end in meridional plane comprising hoop reinforcement and thus makes
Elastomeric material fracture it is insensitive.Specifically, because each of hoop reinforcement circumferential direction reinforcement end is surrounding elastomeric
The potential crack area of body material, these potential crack areas should not be focused in same meridional plane, so that avoiding can
To lead to damage the connection of the microcrack in the crack of tyre last.In addition, in the case where impact, stress meridional plane most
Greatly, correspond to maximum displacement.Therefore the angle allows to avoid the end of reinforcement in same meridional plane and surrounds it
Elastomeric material be subjected to maximum stress and deformation the case where.In order to make the hoop reinforcement of manufacture that there is a cutting to set
It sets, each of the circumferential end of the casing ply of composition hoop reinforcement is equal with the angle of axial direction and has identical symbol
Number.
Preferably, the circumferential distance between the first circumferential end of hoop reinforcement and the second circumferential end at least equal to
0.6m and at most be equal to 1.2m.Specifically, the first circumferential end and the second circumferential end of hoop reinforcement are not included in same
It is overlapped in meridional plane and in the circumferential portion of the periphery of tire, so that it is guaranteed that hoop reinforcement is present in the entire outer of tire
Around enclosing.Circumferential distance between two circumferential ends of hoop reinforcement is referred to as the length being overlapped.The length of overlapping should manage
Solution is measures most in plane (circumferential plane i.e. among tyre surface) under the line between the circumferential end of hoop reinforcement
Small circumferential distance.The technology fact of the length of overlapping greater than 0.6m allows to avoid first in the curing process in diameter change
Under the action of there is no in tire region that there is one layer of circumferential reinforcement fewer than the number of plies necessary to using between working lining
Situation, secondly as each end of reinforcement is the potential crack area of surrounding elastomer material, these cracks it is potential
Region does not concentrate in identical meridional plane radius difference yet.The technology fact of this length limitation to 1.2m cause not increase
The cost for adding the raw material of the scheme, without increasing any durability.
Preferably, close to the average surface of the casing ply of the composition hoop reinforcement of the first circumferential end of hoop reinforcement
The angle for being at most equal to 45 ° measured in equatorial plane is formed in circumferential direction.In this regard, a scheme includes increasing along hoop
The end setting of strong part has the lateral straps of the elastomeric material of triangular cross section.This scheme has the effect that
Reduce the bending stress of the reinforcement of the hoop reinforcement of the radially inner most first end close to hoop reinforcement.Specifically,
In this end, the diameter that the average surface of the hoop reinforcement of winding is subjected to the diameter of the reinforcement equal to hoop reinforcement becomes
Change.This diameter change due to cord bending and occur, it is proper that limit the bending of cord to keep the durability of crown.
In addition, including being laid with there is the program of the lateral straps of elastomeric material of triangular cross section to be filled with before tire curing
Cavity, otherwise the cavity is filled with air, this can cause hole after hardening in the elastomeric material, and reduces the resistance to of tire
Long property.
For similar reasons, the average surface close to the working lining of the second circumferential end of hoop reinforcement and circumferential direction side
To be formed in measured in equatorial plane be at most equal to 45 ° of angle.In this end of hoop reinforcement, working lining is subjected to
In the diameter change of the diameter of the reinforcement of hoop reinforcement, it is related to the bending of working lining.One scheme is similarly along this
End setting has the lateral straps of the elastomeric material of triangular cross section to obtain identical technical side as described above
Case, i.e., bending stress reduces in the reinforcement of working lining, and prevents from trapping air in this position before tire curing.
In the preferred scheme, the axial width of hoop reinforcement is less than the half of the axial width of tire, because being more than
The maximum width causes reinforcement apparent fatigue the cycle of stress in the reinforcement of hoop reinforcement with vehicle wheel rotation simultaneously
Lose durability.
Preferably, two working linings combine on bound fraction in the axial direction, and the bound fraction has at least etc.
In the axial width of the axial width of 1.5% tire.Specifically, it is located axially at the axial end of the reinforcement of hoop reinforcement
Axially combined working lining outside portion allows the rigidity part increase of crown and thus Reducing distortion, thus reduces temperature and changes
Into durability relevant to crown cracking.
It is further preferred that two working linings combine on bound fraction in the axial direction, the bound fraction has at most
The axial width of the axial width of tire equal to 5%.More than particular combination length, working lining must separate to reduce again
The shear stress of elastomeric material near the axial end portion of working lining.
If being discussed less than 3 times of the radial distance between the geometric center of two adjacent reinforcements of two layers
The mean radius of reinforcement, then two layers of reinforcement (such as working lining) is referred to as combines in the axial coordinate discussed.If
The same distance is greater than 4 times this mean radius, then two layers of the reinforcement discussed is known as separation.
In another preferred scheme, what is measured at the center of the bound fraction of two working linings is radially positioned ring
It binds round in plane under the line of the radial distance at least equal to twice between the working lining and carcass reinforcement of the inside of reinforcement and surveys
The radial distance that must be radially positioned between the working lining and carcass reinforcement of the inside of hoop reinforcement.Specifically, in conjunction with
One possible scheme of two working linings is that the laying radius of radially inner most working lining is remained close to its plane under the line
The radius at place, and the working lining for being radially positioned the outside of hoop reinforcement is folded in conjunction with radius.For construction site
Type tire, what the official post of the radius between working lining must be radially positioned the working lining of the outside of hoop reinforcement is folded in institute
It states and generates folding in layer, and generate moulding faults in bond area.In order to limit two working linings in their equatorial plane
The semidiameter between radius in the radius at place and their bond area, suitably relative in equatorial plane from it is radial most
Outer body piles increase in bond area to the distance of radially inner most working lining from radially body piles to radially inner most work
The distance of layer.
It is further advantageous that being radially positioned the inside of the bound fraction of working lining and being contacted with the bound fraction of working lining
Elasticity modulus of first elastomeric material under 10% elongation at least equal to being presented axially in the outer of the first elastomeric material
The elasticity modulus of portion and the second elastomeric material contacted with the first elastomeric material under 10% elongation.The combined area of working lining
Domain is the harder region in the separated region external than being presented axially in it.Depending on being radially positioned in bond area
Adjacent elastomeric material (referred to as the first material) purposes in portion and shear stress therein, it may be preferred in the axial direction
The bullet of external adjacent working lining is radially positioned positioned at external elastomeric material (referred to as the second material) and covering
Rigidity gradient is provided between elastomer material (referred to as calendered layer), in this case, the first elastomeric material is under 10% elongation
Elasticity modulus be greater than or equal to the second material 10% elongation under elasticity modulus.
It it can still be advantageous to, be radially positioned the inside of the bound fraction of working lining and the bound fraction with working lining
The elasticity modulus under 10% elongation of first elastomeric material of contact is radially positioned hoop enhancing at least equal to covering
Elasticity modulus of the elastomeric material of the metal reinforcement of the working lining of the inside of part under 10% elongation.This allows to provide
The rigidity of the maximum possible of bond area, while avoiding the rigidity between the calendering blend of operated adjacent layer and the first material
Difference, and stress relevant to any rigidity discontinuity thus.In this case, bullet of first material under 10% elongation
Property modulus be equal to working lining calendering blend 10% elongation under elasticity modulus.
Advantageously, in the axial end portion of hoop layer, the average surface and axial direction of working lining, which are formed, is at most equal to 45 °
Angle.Specifically, it is advantageously that working lining is indeformable while Tire production, to not cause in their reinforcement
Bending stress.It is presented axially in the part of the inside of the end of circumferential reinforcement and forms the angle close to 0 ° with axial direction
Working lining average surface preferably with less than 45 ° angle and bond area merge.This geometry can by
The axial end portion of the layer of circumferential reinforcement with triangular cross section is laid with the band of elastomeric material and obtains.
It is further advantageous that in the axial direction included in the bound fraction of each axial end portion of hoop reinforcement and working lining
Between elastomeric material 10% elongation under elasticity modulus be equal to covering working lining metal reinforcement elastomeric material
Elasticity modulus under 10% elongation, to avoid the discontinuity of stress related with the stiffness variation of elastomeric material.
Particularly advantageously, it is radially positioned the inside of hoop reinforcement and is included in the outer shaft of bound fraction in the axial direction
At most it is equal to the axis of hoop reinforcement to the width of the part of the working lining between end and the outer axial end portion of the working lining
To the half of width.Specifically, mean boundary (for example, especially tyre surface at them there are the elastomeric material of different-stiffness
Those of) at there are stress, the suitably movement of the axial end portion of limitation working lining.For this purpose, it is advantageous that limit it
Separate section width to improve relevant to the cracking of tire durability.
It is also advantageous that being radially positioned the outside of hoop reinforcement and being included in bound fraction outer shaft in the axial direction
At most it is equal to position radially to the axial width of the part of the working lining between end and the outer axial end portion of the working lining
In hoop reinforcement inside and in the axial direction included in bound fraction outer axial end portion and the working lining outer axial end
The width of the part of working lining between portion improves the cracking phase with tire to limit the movement of the axial end portion of working lining
The durability of pass.
Detailed description of the invention
Other details of the invention and favorable characteristics will be from the exemplary embodiment party of the invention below with reference to Fig. 1 to 7
It is become apparent in the description of case, in the accompanying drawings:
For ease of understanding, attached drawing is not to scale.These figures only show the figure of the part of tire, and tire is opposite
It is extended essentially symmetrically in axis X X', the axis X X' indicates plane or equatorial plane in the circumferential direction of tire.Almost symmetry meaning
Refer to that in manufacture deviation, symmetrically in other words, accuracy is about ± 3%.In this case, crown structure of the invention and asymmetry
Sidewall or tyre bead it is compatible.
Fig. 1 shows the sectional stereogram of the crown of tire according to prior art, includes
Tyre surface 10,
Sidewall 20,
Carcass reinforcement 30 comprising body piles, the reinforcement and circumferential direction XX' of body piles form the angle close to 90 °
Degree,
Hoop reinforcement 40 comprising two hoop layers 41,42, the reinforcement of hoop layer respectively with circumferential direction XX' shape
At 8 ° to 15 ° of angle,
Work reinforcement 50 comprising two working linings 51,52, and it is radially positioned the outside of hoop reinforcement 40,
Protecting reinforcement 60 includes two protective layers 61,62.
Fig. 2 shows the meridional section of the crown across tire according to the present invention, includes
Tyre surface 10,
Carcass reinforcement 30,
Crown reinforcement 100 comprising work reinforcement 50, hoop reinforcement 70 and protection reinforcement 60, work enhancing
Part 50 includes two working linings 51,52, and hoop reinforcement 70 includes the circumferential reinforcement 71,72 of two circles of winding, the winding
Two, which enclose circumferential reinforcement 71,72, has axial width L1, and the protection reinforcement 60 includes two protective layers 61,62,
The bond area of working lining 51,52, with axial width L2,
The free end portion of the working lining 51 of inner radial, with axial width L3,
The free end portion of the working lining 52 of radially outer, with axial width L4,
Radially it is located at the first elastomer blend Z1 of the inside of the bond area of working lining 51,52, there is maximum
Radial thickness E1,
Radially it is located at the inside of the working lining 51 of inner radial and is presented axially in the combined area of working lining 51,52
Second elastomer blend Z2 of the outside in domain,
It is radially included between working lining 51 and 52 and is included in hoop reinforcement 40 and working lining 51 and 52 in axial direction
Bond area between third elastomer blend Z3.
Fig. 3 shows the sectional stereogram of the crown of tire according to the present invention.It is main with Fig. 1 of the display prior art
Difference is that two including winding enclose the hoop reinforcement 70 of circumferential reinforcement 71,72, radially circumferential end 74 and axis
Angle (A) is formed to direction.
Fig. 4 shows the sectional stereogram and Local map of the crown of tire according to the present invention, particularly includes
Carcass reinforcement 30,
Radially inner most working lining 51,
The radially inner most circumferential end 73 of hoop reinforcement 70 forms angle (A) with axial direction.
Fig. 5 shows the circumferentially overlapping part of hoop reinforcement 70 circumferential cross-section in plane under the line.In major part
In, hoop reinforcement 70 includes two layers 71 and 72 be radially superimposed.In the overlapping region with circumferential lengths L5, hoop increases
Strong part includes three layers be radially superimposed.At the first circumferential end 73 of inner radial, hoop reinforcement 70 and circumferential direction
XX' forms angle A 2.At the second circumferential end 74 of the radially outer of hoop reinforcement 70, the working lining 52 of radially outer with
Circumferential direction XX' forms angle A 3.
The axial end portion that Fig. 6 is shown in hoop layer 71 and 72 is in the section that crown is passed through in meridional plane, wherein radial
The working lining 52 of internal working lining 51 and radially outer forms angle A 4 and A5 with axial direction YY' respectively.It particularly shows
Show that is measured in plane under the line is radially included between carcass reinforcement 30 and radially inner most working lining 51 and radially
Positioned at the radial thickness E1 of the first elastomer blend Z1 of the inside of the bond area of working lining 51,52, and radially
It include the radial thickness E2 of the elastomer blend between the working lining of inner radial and carcass reinforcement 30.
Fig. 7, which is shown below in three kinds of situations in the press process that tyre inflating to manufacturer is recommended, is located at meridional plane
In tread surface movement of the point in terms of mm:
Prior art tire A includes two narrow hoop layer, has and increases at limitation tire shoulder and limit work resulting from
The advantages of making the risk of layer cracking, but there is hardening center and thus make its shock sensive defect,
Prior art tire B does not have hoop reinforcement, but therefore with tool is flexible at center and has good resistance to punching
The crown of hitting property thereby results in the elevated operating temperature at crown, this will lead to the cracking of working lining,
Tire C according to the present invention includes: from outside to inside radially
The protection reinforcement formed by protective layer, elastic metallic reinforcement have the diameter for being equal to 3.8mm and are equal to
The disruptive force of 950daN,
The work reinforcement formed by working lining, non-resilient metal reinforcement intersect in working lining between working lining
And form the angle at least equal to 33 ° with circumferential direction and there is the disruptive force equal to 2500daN,
The hoop reinforcement formed by two hoop layers, is arranged between working lining radially, and circumferential metal increases
Strong body has the disruptive force equal to 950daN.
Specific embodiment
The present invention is by being used for construction site type heavy goods vehicles equal to 1345mm's having a size of 53/80R63, maximum axial width
Tire realize.According to prior art with reference to tire by body piles, two narrow hoop layer, two with metal reinforcement
Working lining and two protective layers are constituted, and the narrow hoop slice width degree, which is equal to 550mm and has, to be formed with circumferential direction equal to 8 °
Angle and the reinforcement intersected between the layers, described two working linings are respectively provided with the width equal to 900mm and 1000mm
With the reinforcement for forming the angle equal to 33 ° and 19 ° with circumferential direction respectively, and with the disruptive force equal to 1960daN, institute
State protective layer with diameter be 2mm, disruptive force 255daN, formed with circumferential direction angle equal to 24 ° and layer and layer it
Between the reinforcement intersected.
The difference of tire and prior art tire according to the present invention is the work reinforcement, the ring that have there are two working lining
Reinforcement and protection reinforcement are bound round, each reinforcement and the circumferential direction formation of working lining are equal to 33 ° of angle, disruptive force etc.
In 2530daN.The hoop reinforcement that the casing ply enclosed by circumferentially wound two forms, the cord are provided that between working lining
Layer has the axial width equal to 520mm and including elastic metallic circumferential direction reinforcement, and the elastic metallic circumferential direction reinforcement has
Breaking strength equal to 950daN and the elasticity modulus equal to 90GPa, these mechanical features are in the reinforcement extracted from tire
On measure.By forming with the reinforcement of hoop layer identical type, the reinforcement and circumferential direction are formed equal to 33 ° protective layer
Angle.These reinforcements have the diameter of 3.8mm.
Two working linings combine on the axial width of 30mm.Radial direction between carcass reinforcement and radially inner most working lining
It is equal to 4.6mm in plane under the line, 13mm is equal under the bond area of working lining.Not same district around bond area
The elastomeric material in domain is identical as the covering elastomeric material of reinforcement of working lining.It is radially positioned the interior of hoop reinforcement
The length that the working lining in portion is measured from the outer axial end portion of outer axial end portion to the working lining of bond area is equal to 115mm,
It is radially positioned the outer shaft of the working lining of the outside of hoop reinforcement from the outer axial end portion of bond area to the working lining
The length measured to end is equal to 70mm.
Two kinds of structures of two tires are assessed when rolling by the element model completed in radially working lining
Axial end portion and radially inner most working lining between shear-deformable value.By simulate 7bar pressure under 90t load,
The lateral deviation power of 18t is calculated.By selected standard, the scheme allows to be reduced compared with the prior art close to 30%
With vehicle wheel rotation deformation the period amplitude.However, this value is directly related with the performance that crown cracks.In addition, for identical
Calculating, different from tire according to prior art, the reinforcement of working lining according to the present invention is not subjected to any compressing force, this
It is directly related with the durability performance of crown.The assessment of the internal temperature of tire is shown compared to tire sheet according to prior art
Temperature in the crown of invention reduces about 2 DEG C, this is the known standard for improving the globality of tire cracking aspect.
Durability performance relevant to the cracking of crown measures on dumper vehicle, and the dumper vehicle has
The load of each tire 90t, the tire were inflated to 6bar in the cold state, and with 17km/h rolling 640 hours.In the purposes
Afterwards, tire is cut into 6 parts, removes tyre surface to extract any existing for working lining and detection between the two layers split
Seam.The relevant durability performance with tire cracking is proportionally assessed to the width in cracking crack.Tire according to the present invention is aobvious
Show that at least 20% cracking damage lower than tire according to prior art is horizontal.
For the tire of the size, the crown impact resistance of various forms of tires is directly surveyed in the place use of client
Examination.The experiment of these original places has been verified that the tire more flexible without hoop reinforcement is compared to according to existing at crown
The tire with narrow hoop layer of technology has better impact resistance, and the latter is in terms of durability relevant to tire cracking
More preferably.Tire according to the present invention shows impact resistance and improves crown cracking the two, the resistance to punching of tire according to the present invention
Hitting property is at least equal to the impact resistance of the tire of no hoop reinforcement, and tire of the invention is in terms of crown cracking compared to root
30% is improved according to the tire including hoop reinforcement of the prior art.
Claims (10)
1. the tire of the heavy vehicle for building site type, comprising:
Tyre surface (10), be intended to ground face contact,
Radial carcass reinforcement (30), the radial carcass reinforcement (30) be radially positioned the inside of tyre surface (10) and
Including at least one body piles,
Crown reinforcement (100), the crown reinforcement (100) be radially positioned the inside of the tyre surface (10) and
Radially it is located at the outside of the radial carcass reinforcement (30), and including reinforcement (50), hoop reinforcement (70) of working
With protection reinforcement (60),
The work reinforcement (50) comprising at least two working linings (51,52), each working lining include non-resilient metal
Reinforcement, the non-resilient metal reinforcement intersect between working lining and working lining and with circumferential direction formed at least equal to
30 ° and the angle at most equal to 35 °,
The hoop reinforcement (70), is formed, the casing ply includes being formed with circumferential direction by circumferentially wound casing ply
At most it is equal to 2.5 ° of circumferential elastic metallic reinforcement, the circumferentially wound casing ply is extended to from the first circumferential end (73)
The second circumferential end (74) being radially positioned outside the first circumferential end, to form at least two radially stacked hoops
Layer (71,72),
The protection reinforcement (60) comprising at least two protective layers (61,62), the protective layer is by metal reinforcement group
Intersect between protective layer and protective layer at, the metal reinforcement and is formed with circumferential direction at least equal to 20 ° and at most etc.
In 40 ° of angle,
It is characterized in that, the metal reinforcement of protective layer be it is elastic, have diameter at least equal to 3mm and at least equal to
The disruptive force of 800daN, the metal reinforcement of working lining (51,52) have the disruptive force at least equal to 2500daN, hoop enhancing
Part (70) is arranged in radially between working lining (51,52), and the circumferential elastic metallic reinforcement of hoop reinforcement (70) has
Disruptive force at least equal to 800daN.
2. tire according to claim 1, the wherein circumferential elastic metallic reinforcement and protective layer of hoop reinforcement (70)
The metal reinforcement of (61,62) is identical type.
3. tire according to claim 1 or 2, the wherein circumferential elastic metallic reinforcement or protection of hoop reinforcement (70)
The metal reinforcement of layer has the elasticity modulus under 10% elongation at least equal to 70GPa and at most equal to 130GPa.
4. tire according to claim 1, the angle that wherein metal reinforcement of protective layer is formed with circumferential direction it is exhausted
The metal reinforcement of working lining and the angle of circumferential direction are substantially equal to value.
5. tire according to claim 1, wherein the axial width (L1) of hoop reinforcement (70) is less than the axial direction of tire
The half of width (LT).
6. tire according to claim 1, two of them working lining (51,52) is tied on bound fraction in the axial direction
It closes, the bound fraction has the axial width (L2) of the axial width (LT) of the tire at least equal to 1.5%.
7. tire according to claim 1, two of them working lining (51,52) is tied on bound fraction in the axial direction
It closes, the bound fraction has the axial width (L2) of the axial width (LT) of the tire at most equal to 5%.
8. the tire according to any one of claim 6 and 7, two of them working lining (51,52) includes the first working lining
(51) and the second working lining (52), what is measured at the center of the bound fraction of two working linings (51,52) is radially positioned
Radial distance (E1) between the first working lining (51) and radial carcass reinforcement (30) of the inside of hoop reinforcement (70) is extremely
The first working lining (51) for being radially positioned the inside of hoop reinforcement (70) is measured in the plane under the line equal to twice less
Radial distance (E2) between radial carcass reinforcement (30).
9. the tire according to any one of claim 6 and 7, wherein the first working lining (51) is radially positioned hoop increasing
The inside of strong part (70) is simultaneously included in the outer axial end portion of bound fraction and the outer shaft of first working lining (51) in the axial direction
At most it is equal to the half of the axial width (L1) of hoop reinforcement (70) to the width (L3) of the part between end.
10. the tire according to any one of claim 6 and 7, wherein the second working lining (52) is radially positioned hoop
Reinforcement (70) is external and in the axial direction included in the outer shaft of the outer axial end portion of bound fraction and second working lining (52)
At most it is equal to the first working lining (51) to the axial width (L4) of the part between end and is radially positioned hoop reinforcement
(70) inside and in the axial direction included in the outer axial end of the outer axial end portion of bound fraction and first working lining (51)
The width (L3) of part between portion.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1561856A FR3044593B1 (en) | 2015-12-04 | 2015-12-04 | PNEUMATIC TOP REINFORCING FOR HEAVY VEHICLE TYPE GENIE CIVIL |
| FR1561856 | 2015-12-04 | ||
| PCT/FR2016/053066 WO2017093637A1 (en) | 2015-12-04 | 2016-11-24 | Crown reinforcement for a tyre for a heavy-goods vehicle used in civil engineering |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108290447A CN108290447A (en) | 2018-07-17 |
| CN108290447B true CN108290447B (en) | 2019-10-25 |
Family
ID=56084095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680069758.8A Active CN108290447B (en) | 2015-12-04 | 2016-11-24 | The crown reinforcement of tire for heavy goods vehicle used in municipal works |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US11007819B2 (en) |
| EP (1) | EP3383667B1 (en) |
| JP (1) | JP2019501062A (en) |
| CN (1) | CN108290447B (en) |
| BR (1) | BR112018011150B1 (en) |
| FR (1) | FR3044593B1 (en) |
| WO (1) | WO2017093637A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111132854B (en) * | 2017-09-22 | 2021-10-22 | 米其林集团总公司 | Crown reinforcement for a tyre of a heavy vehicle of the construction site type |
| WO2019202240A1 (en) * | 2018-04-17 | 2019-10-24 | Compagnie Generale Des Etablissements Michelin | Protective reinforcement for a tyre for a heavy civil-engineering vehicle |
| CN112004691B (en) * | 2018-04-17 | 2022-05-24 | 米其林集团总公司 | Protective reinforcement comprising different layers for a pneumatic tire for a heavy civil engineering vehicle |
| WO2020053071A1 (en) | 2018-09-13 | 2020-03-19 | Compagnie Generale Des Etablissements Michelin | Hooping reinforcement for a tyre of a heavy duty civil engineering vehicle |
| FR3103139B1 (en) * | 2019-11-15 | 2021-10-22 | Michelin & Cie | Tire crown reinforcement for heavy civil engineering vehicle |
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-
2015
- 2015-12-04 FR FR1561856A patent/FR3044593B1/en not_active Expired - Fee Related
-
2016
- 2016-11-24 US US15/780,791 patent/US11007819B2/en active Active
- 2016-11-24 EP EP16813010.2A patent/EP3383667B1/en active Active
- 2016-11-24 CN CN201680069758.8A patent/CN108290447B/en active Active
- 2016-11-24 JP JP2018528785A patent/JP2019501062A/en active Pending
- 2016-11-24 BR BR112018011150-3A patent/BR112018011150B1/en active IP Right Grant
- 2016-11-24 WO PCT/FR2016/053066 patent/WO2017093637A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60240506A (en) * | 1984-05-14 | 1985-11-29 | Sumitomo Rubber Ind Ltd | Tire for motor-cycle |
| US5591284A (en) * | 1994-04-28 | 1997-01-07 | Dunlop France Sa | Radial tire with triangulated steel cord belt |
| CN1990276A (en) * | 2005-12-05 | 2007-07-04 | 固特异轮胎和橡胶公司 | Pneumatic tire |
| CN201895538U (en) * | 2010-12-07 | 2011-07-13 | 山东银宝轮胎集团有限公司 | All-steel load-bearing radial tire |
| CN105073448A (en) * | 2013-02-21 | 2015-11-18 | 普利司通美国轮胎运营有限责任公司 | Tire having an offset body ply construction |
| DE102014208728A1 (en) * | 2014-05-09 | 2015-11-12 | Continental Reifen Deutschland Gmbh | Vehicle tires |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3044593B1 (en) | 2017-12-08 |
| FR3044593A1 (en) | 2017-06-09 |
| EP3383667A1 (en) | 2018-10-10 |
| WO2017093637A1 (en) | 2017-06-08 |
| JP2019501062A (en) | 2019-01-17 |
| US11007819B2 (en) | 2021-05-18 |
| CN108290447A (en) | 2018-07-17 |
| EP3383667B1 (en) | 2019-11-20 |
| BR112018011150A2 (en) | 2019-01-29 |
| US20200247187A1 (en) | 2020-08-06 |
| BR112018011150B1 (en) | 2021-10-26 |
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